Sorry for the length... I recently tried to install WinDVD on my 98SE box and after doing so, found that I got about 3-4 error messages on startup and could no longer open the communications folder (dial up networking). I got an error stating that rnaui.dll linked to a library that is missing. I followed MS directions to fix this, by replacing clean copies of the following files in C:\Windows\System: wsock32.dll rnaui.dll msvcrt20.dll rasapi32.dll rnaapp.exe rsaenh.dll This solved the startup issue, but I still could not get into the communication folder. I next ran System File Checker and replaced several of the above files again. When I restarted my machine, I get the following error message: Explorer.exe has preformed an invalid operation and will be closed. In the Details view, I noticed that the error happens in shdoc401.dll. I cannot get past this error, and it occurs when booting to safe mode as well. Sometimes the taskbar shows up and I can navigate the Start menu, but that is all. Any help is much appreciated. The MS support site did not yield anything for me, but I hope one of you may. Thanks!

Microsoft pretty much explains in the repair article to try and use the repair tool for this problem, per attached. http://support.microsoft.com/default.aspx?scid=kb;EN-US;q194177

Sorry. I meant Windows Explorer. I cannot get to the point where I could try the above solution. Any other ideas? Thanks

I had the same problem a few days ago, and have solved it by reinstalling ie6. The computer starts up with an error message saying it cannot start explorer because of an error with shdoc401.dll, this is a dll wich is part of ie5. solution: find a cd with ie6, open startmenu, execute and and type (path)\ie6setup.exe. This solved the problem for me. Good luck Arjan